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Backlash
The clearance between mating gear teeth and assembly tolerance.
Prepared and technically reviewed by: TORQYX Engineering Team · Methodology and team
Definition
Backlash describes the amount of clearance between mating gear teeth. This clearance is needed for thermal expansion and assembly tolerances.
Backlash = total clearance / number of teeth
Tips
Higher backlash can increase noise and vibration. Very low backlash can stress lubrication conditions.
Related calculators and guides
Gear backlash calculator
CalculatorQuickly validate backlash range.
Formulas
Backlash = total clearance / number of teeth